> > then pop the drain an measure what comes out from fully extended to

>

> > fully compressed position?

>

> Sorry . I should have been more clear .

>

> With a tape measure , measure the difference between fully extended and

> fully compressed , say 3" . Then , fill to 3" from the top of each leg

> when they are extended , hanging in the triple tree . ;)

I still don't understand how you would know how much 3" of hypothetical travel would convert into fluid ounces, because there's no way to measure height or fluid level inside the forks when they're assembled